Pfaff 5642 Service Manual

PFAFF

5642

Service

Manual

296-12-13925

Justieranl.

engi.

7.92

Notesonsafety

•

The

machine

operatedbypersons

•

The

machine

•

Useofthe

•

When

bobbin)

must

be isolated from

mains

On

mechanically

the

motor

• General servicing work

• Repairs, conversion

or

persons

• For

service

compressed

Exceptionstothis

technicians.

• Work on

appropriately

must

machine

gauge

part

during

threading,

plug.

has

stopped.

with

appropriate

or repair work on

air

supply

the

electrical

trained

onlybecommissioned

with

appropriate

onlybeused

without

are

exchanged

the

operated

must

and

special

for

the

safety

when

the

mains by switching off

clutch

motors

onlybecarried

maintenance

training.

pneumatic

system.

are

only

adjustments

equipment

persons.

in full

training.

the

purpose

devices

(e.g.

needle,

workplace

knowledgeofthe

intended.

belonging

presser

is left,

and

the

without

systems

and

start

out

by appropriately trained

work

must

the

function

checks

must only be carried

to it is

foot,

during

not

needle

service

instruction

permitted.

plate,

work,

book

feed

the

main switch or disconnecting

inhibitor it is

necessary

to wait until

persons.

only be carried

machine

made

out

by electrical

outbytechnicians

mustbeisolated

by appropriatelytrained

engineers

and

dog

and

machine

the

from

the

• Work on parts and systems under electric current are not permitted, except as specified

in

regulations

• Conversions or

adherencetoall

• For repairs, only

Please

note:

This service manual

Divergencies in

DIN

57105orVDE 0105.

changestothe

safety

regulations.

replacement

applies

the

illustrations have no bearing on

machine must be authorized by us and only be made on

parts

approved

for

the

single-needle-aswell as for

by us

the

must

be used.

adjustments.

the

multi-needle version.

or

Tools,

gauges

Setofscrewdrivers

Set

of alien

and

other

with

keys

from 1.5to6 mm

equipment

blades

from2to10mm

needed

for

Adjustment pin, 3 mm dia. (flattened to 2.3 mm at

Positioning pin, 5 mm dia.,

Positioning pin, 6 mm, with 3 mm end dia.,

C-clamp, Adjusting

Metal

Packetofsystem

Sewing

part

gauge(5and

rule,

part

thread

No.

08-880137-00

No.

5640

and

part

7 mm),

08-880218-00

needles

testing

fabric

No.

13-030341-05

part

No. 61-111643-54

part

adjustment

one

end), part No. 61-111643-55

No. 61-111643-53

Contents

Notesonsafety

The

most

important

1 Preliminary 2

Looper

3

Feed

Spreader

4 5

Feed

6

Feed

6.1

Crosswisetosewing

6.2Insewing 7

Feed

8

Positionofneedleinneedle

8.1

Crosswisetosewing

8.2Insewing 9

Looper-to-needle

sewing

9.1 In

9.2

Crosswisetosewing

10

Needle

11

Spreader

11.1 In

sewing

adjustmentofneedle

drive

lifting

eccentric

drive driving dog

position

direction

dog

height

direction

bar

height

position

direction

11.2 Crosswise to sewing direction

12

Needle

guard

13

14

15

16

17

18

Regulating

Needle

Stitch

Fabric

Knee

Tension

thread

length

clearance

lever

release

the

rest

eccentric

clearance

looper

regulation

limitation

position

adjustment

and

needle

direction

thread

and

data

hole

and

take-up

stroke

In brief 4

bar

height

bar

frame

drive

looper

lever

guard

limitation

Page

2

6 7

9 10 11 12 12

13 14

15

15 16 17 17 18 19

20

21

22

23

24

25

26

28

29

The

most

1

Position

at

Feed

b.d.c.ofneedle

Feed

for33mm

at

for36mm

0,9

Feed

for33mm

at for36mm

0,9

=

important

of

needle

b.d.c.ofneedle

dog

height

driving

eccentric

mm

dog

needle

before

lifting

needle

before

b.d.c.ofneedle

respective

adjustment

in

needle

bar

at

bar

stroke

bar

stroke

b.d.c.ofneedle

motion

bar

stroke

bar bar

stroke

b.d.c.ofneedle

highest

positionoffeed

dataInbrief

hole

bar

dog

Step-by-step

adjustment

In

section

8

Looper

at

b.d.c.ofneedle

for

stitch

over

6

Needle

7

Looper-to-needie

8

Needle

drive

4.5

mm

rise5mm

guard

eccentric

lenghts

bar

clearance

at

b.d.c.ofneedle

for

stitch

upto4.5

bar

lenghts

mm

2 + 9

12

9

10

11

12

Needle

height

Spreader

5.5

mm

4.5mmfor

Spreader

at

b.d.c.ofneedle

Spreader

in

sewing

stroke

needle

drive

eccentric

position

direction

gauge

bar

4.8

mm

(4,5aMl)

Step-by-step

adjustment

in

section

10

11

crosswisetosewing

direction

Preliminary

adjustmentofneedle

bar

height

Setting:

With

the

plate

33

36

needle

mustbe11mmor 13

mm

needle

mm

needle

bar

at t.d.c.,

bar

stroke

bar

stroke=13

j ^

the

clearance

mm,

dependingonthe

= 11

mm

between

needle

point

bar

and

stroke.

needle

Adjustment:

1.0.2

Unscrew

Set

Loosen

Reposition

needle

Tighten

needle

plate

face

plate.

barattd.c.

screw

1.

needle

bar

is 11 mmor13 mm

screw

1.

vertically until

(see

the

clearance

"Setting").

between

needle

point

and

2

Looper

drive

eccentric

Setting:

For

stitch

With

must

For

stitch

With

the

through pin

contacts

lengths

the

needle

enter

lengthsupto

needle

hole6must

longer

baratb.d.c.,

groove

baratb.d.c.,

the

rear

than

7 when

4.5

mm:

the

enter

groove

edgeofthe

4.5

mm:

the

rounded

the

pin is insertedthrough hole6

flattened

groove

7 in

suchaway

endofthe

(see

Fig. 2.0.3).

that

3-mm-thlck

(see

adjustment

the

flat

o o O O O O

adjustment

Rg. 2.0.4).

inserted

sectionofthe

2.0.1

2.0.3

2.0.4

Adjustment:

2.1 .2 .3

Unscrew

Loosen

Set the

For

positioned When of

For (as shaft8.When

edgeofgroove7contacts

Tighten

fig. 2.0.1).

presser

screw3so

needle

machine)

stitch

using

the

inserted

stitch

lengthsupto

seeninthe

screws3and

foot

and

that

baratb.d.c.

(see

fig. 2.0.1).

lengths

vertically

the

longer

3-mm

above

adjustment

through

directionofrotation)ispositioned

using

the

cover

plate1(see

eccentric4canbeturned

and

insert

the

than

4.5

looper

mm,

drive pin,

hole6can

4.5

mm,

turn

eccentric4so

3-mm

adjustment

the

flat

sectionofthe

remove

the

8

adjustment

fig. 2.0.1).

5-mm

adjustment

turn

shaft

turn

eccentric4so

enter

groove

pin,

8.

against

eccentric4so

resistance.

pin in

that

7.

that

the

rear

vertically

turn

eccentric4so

pin.

pins

from

hole5(to

that

the

groove

rounded

block

7 is

end

edgeofgroove

above

looper

drive

that

the

rear

holes5and6(see

7

3

Feed

tiffing

eccentric

Setting:

Groove4mustbepositioned

for33mm

for36mm

needle

bar

stroke,

vertically

needle

above

barisat

baris0.9

looper

b.d.c.,

mm

drive

or

before

shaft5,when:

b.d.c.

3.0.2

Adjustment:

3.1

.2

Unscrew

turned

Set

adjustment

.3 Turn

looper

.4 Tighten .5

Check

cover

against

needle

2 (Fig. 2.0.1)

resistance.

bar

accordingtostroke

pin In

eccentric2on

drive

shaft

screws1and

this

adjustment

hole

the

5.

take

and

3 (to

block

shaftsothat

the

adjustment

(see

"Setting").

loosen

type

the

screws1so

(see

machine).

groove4is

out

that

"Setting")

positioned

of hole 3.

eccentric2can

and

Insert

the

vertically

be

5 mm

airave